/*
 * Copyright (c) 2024 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

namespace swap2 {
class Test {
    obj: Test;
 }

function main() {
    let a = new Test();
    let b = new Test();

    a.obj = new Test();
    b.obj = new Test();

    swap(a, b);
}

function swap(in1: Test, in2: Test) {
    let tmp = in1.obj;
    in1.obj = in2.obj;
    in2.obj = tmp;
}
}